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          <h1 class="post-title" itemprop="name headline">PHP XML

              
            
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        <h1 id="php-XML"><a href="#php-XML" class="headerlink" title="php XML"></a>php XML</h1><h2 id="DOMDocument"><a href="#DOMDocument" class="headerlink" title="DOMDocument"></a>DOMDocument</h2><h3 id="遍历删除节点"><a href="#遍历删除节点" class="headerlink" title="遍历删除节点"></a>遍历删除节点</h3><p>遍历删除节点的时候，会出现删除节点删除不干净，<br>当你使用foreach来遍历的时候<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">foreach($nodes as $node)&#123;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<p>是因为即当删除了第2个节点之后第3个节点会变成第2个节点，遍历的下个节点变成了第4个节点，跳过了对第3个节点的检查</p>
<p>当你使用foreach来遍历的时候<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">for($i=0; $i &lt; $nodes-&gt;length; $i++)&#123;</span><br><span class="line"></span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<p>是因为即当删除了第2个节点之后第3个节点会变成第2个节点，遍历的下个节点变成了第4个节点，跳过了对第3个节点的检查并且节点的nodes-&gt;length会实时变化，导致最后的几个节点检查不到</p>
<h4 id="solution"><a href="#solution" class="headerlink" title="solution"></a>solution</h4><p>方法1 额外使用一个指示器，来记录指向节点的位置，当删除节点的是指示器值不加1，这样就指向了下个节点<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">$dom = <span class="keyword">new</span> DOMDocument();</span><br><span class="line">$dom-&gt;load(<span class="keyword">$this</span>-&gt;xmlfile);</span><br><span class="line">$nodes = $dom-&gt;getElementsByTagName(<span class="string">'nodes'</span>);</span><br><span class="line">$index = <span class="number">0</span>;</span><br><span class="line"><span class="keyword">while</span>($index &lt; $nodes-&gt;length) &#123;</span><br><span class="line">    <span class="keyword">if</span> (in_array($nodes-&gt;item($index)-&gt;getAttribute(<span class="string">"id"</span>), $ids)) &#123;</span><br><span class="line">        $objectNode = $nodes-&gt;item($index);</span><br><span class="line">        $objectNode-&gt;parentNode-&gt;removeChild($objectNode);</span><br><span class="line">    &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">        $index ++;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<p>方法2<br>先将所有节点遍历一遍，将要删除的节点存在一个数组里面，然后统一删除<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">foreach</span>($nodes <span class="keyword">as</span> $node)&#123;</span><br><span class="line">  <span class="keyword">if</span> (in_array($node-&gt;getAttribute(<span class="string">"id"</span>), $ids)) &#123;</span><br><span class="line">    $delete[] = $node;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="keyword">foreach</span>($delete <span class="keyword">as</span> $val)&#123;</span><br><span class="line">  $val-&gt;parentNode-&gt;removeChild($val);</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<h2 id="simplexml-load-file"><a href="#simplexml-load-file" class="headerlink" title="simplexml_load_file"></a>simplexml_load_file</h2><h3 id="保存"><a href="#保存" class="headerlink" title="保存"></a>保存</h3><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">save</span><span class="params">($dom)</span></span>&#123;</span><br><span class="line">    <span class="keyword">if</span>($dom-&gt;asXML(<span class="string">"/test.xml"</span>))&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="string">"success"</span>;</span><br><span class="line">    &#125;<span class="keyword">else</span>&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="string">"fail"</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="修改标签的值"><a href="#修改标签的值" class="headerlink" title="修改标签的值"></a>修改标签的值</h3><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br></pre></td><td class="code"><pre><span class="line">$xml = @simplexml_load_file(<span class="string">"/test.xml"</span>);</span><br><span class="line"><span class="comment">//用xpath快速查找值</span></span><br><span class="line">$node = $xml-&gt;xpath(<span class="string">"/node/config[@name='enable_tmp_files']"</span>)[<span class="number">0</span>];</span><br><span class="line"><span class="comment">/*</span></span><br><span class="line"><span class="comment">&lt;node&gt;&lt;config name="test"&gt;&lt;/config&gt;&lt;/node&gt;</span></span><br><span class="line"><span class="comment">*/</span></span><br><span class="line"><span class="comment">//读取标签间的值</span></span><br><span class="line">(string)$node-&gt;config;</span><br><span class="line"></span><br><span class="line"><span class="comment">//读取标签的属性</span></span><br><span class="line">(string)$node-&gt;config[<span class="string">"name"</span>]</span><br><span class="line"></span><br><span class="line"><span class="comment">//修改标签间的值</span></span><br><span class="line">dom_import_simplexml($node)-&gt;nodeValue = <span class="string">"true"</span>;</span><br><span class="line"></span><br><span class="line"><span class="comment">/*</span></span><br><span class="line"><span class="comment">&lt;node&gt;</span></span><br><span class="line"><span class="comment">   &lt;config enable="true"/&gt;</span></span><br><span class="line"><span class="comment">   &lt;config enable="true"/&gt;</span></span><br><span class="line"><span class="comment">   &lt;config enable="true"/&gt;</span></span><br><span class="line"><span class="comment">&lt;/node&gt;</span></span><br><span class="line"><span class="comment">*/</span></span><br><span class="line"><span class="keyword">foreach</span>($node-&gt;config <span class="keyword">as</span> $config)&#123;</span><br><span class="line">    <span class="comment">//修改标签的属性</span></span><br><span class="line">    $config[<span class="string">"enable"</span>] = <span class="string">"true"</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h3 id="删除某个节点内所有节点内容"><a href="#删除某个节点内所有节点内容" class="headerlink" title="删除某个节点内所有节点内容"></a>删除某个节点内所有节点内容</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">dom_import_simplexml($node)-&gt;nodeValue = &quot;&quot;;</span><br></pre></td></tr></table></figure>
<h3 id="创建节点"><a href="#创建节点" class="headerlink" title="创建节点"></a>创建节点</h3><p>solution 1<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">$newnode = $node-&gt;addChild(&quot;newnode&quot;);</span><br><span class="line">$newnode = $node-&gt;addChild(&quot;newnode2&quot;, &quot;nodeValue&quot;);</span><br><span class="line">$newnode-&gt;addAttribute(&quot;newAttr&quot;, &quot;attrValue&quot;);</span><br></pre></td></tr></table></figure></p>
<p>solution 2<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">$newnode = simplexml_load_string(&quot;&lt;newnode newAttr=&quot;attrValue&quot;&gt;nodeValue&lt;/newnode&gt;&quot;);</span><br><span class="line">dom_import_simplexml($node)-&gt;nodeValue = $newAttr;</span><br></pre></td></tr></table></figure></p>
<h2 id="XMLReader"><a href="#XMLReader" class="headerlink" title="XMLReader"></a>XMLReader</h2><h3 id="简介"><a href="#简介" class="headerlink" title="简介"></a>简介</h3><p>此扩展需要 libxml PHP 扩展。这表示需要使用 –enable-libxml ，尽管这将隐式完成因为 libxml 是缺省开启的。</p>
<h3 id="特点"><a href="#特点" class="headerlink" title="特点"></a>特点</h3><p>XMLReader是以Stream的形式读取数据，即纵然面对超大的xml文件用于读取大型xml，可以逐个节点进行读取操作，节约内存</p>
<h3 id="用法"><a href="#用法" class="headerlink" title="用法"></a>用法</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line">//读取bignode节点下的node节点,bignode后面的是smallnode节点不读取</span><br><span class="line">$z = new XMLReader();</span><br><span class="line">$z-&gt;open(&quot;/big.xml&quot;);</span><br><span class="line">$doc = new DOMDocument;</span><br><span class="line">// move to the first &lt;product /&gt; node</span><br><span class="line">while ($z-&gt;read() &amp;&amp; $z-&gt;name !== &apos;product&apos;);</span><br><span class="line"></span><br><span class="line">// now that we&apos;re at the right depth, hop to the next &lt;product/&gt; until the end of the tree</span><br><span class="line">while ($z-&gt;nodeType == XMLReader::ELEMENT &amp;&amp; $z-&gt;name === &apos;product&apos;)</span><br><span class="line">&#123;</span><br><span class="line">    // either one should work</span><br><span class="line">    //$node = new SimpleXMLElement($z-&gt;readOuterXML());</span><br><span class="line">    $node = simplexml_import_dom($doc-&gt;importNode($z-&gt;expand(), true));</span><br><span class="line"></span><br><span class="line">    // now you can use $node without going insane about parsing</span><br><span class="line">    var_dump($node-&gt;element_1);</span><br><span class="line"></span><br><span class="line">    // go to next &lt;product /&gt;</span><br><span class="line">    $z-&gt;next(&apos;product&apos;);</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h4 id="读取单节点的方法使用simplexml的方法"><a href="#读取单节点的方法使用simplexml的方法" class="headerlink" title="读取单节点的方法使用simplexml的方法"></a>读取单节点的方法使用simplexml的方法</h4><p>solution 1<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">$xml = $z-&gt;readOuterXML();</span><br><span class="line">$xml = simplexml_load_string($xml);</span><br></pre></td></tr></table></figure></p>
<p>solution 2<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">$node = new SimpleXMLElement($z-&gt;readOuterXML());</span><br></pre></td></tr></table></figure></p>
<p>solution 3<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">$doc = new DOMDocument;</span><br><span class="line">$node = simplexml_import_dom($doc-&gt;importNode($z-&gt;expand(), true));</span><br></pre></td></tr></table></figure></p>
<h3 id="读取节点间的内容"><a href="#读取节点间的内容" class="headerlink" title="读取节点间的内容"></a>读取节点间的内容</h3><p>xml文件<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br></pre></td><td class="code"><pre><span class="line">&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;</span><br><span class="line">&lt;rss xmlns:dc=&quot;http://purl.org/dc/elements/1.1/&quot; version=&quot;2.0&quot;&gt;</span><br><span class="line">    &lt;channel&gt;</span><br><span class="line">        &lt;title&gt;拍拍看科技&lt;/title&gt;</span><br><span class="line">        &lt;link&gt;http://blog.limiwu.com/&lt;/link&gt;</span><br><span class="line">        &lt;description&gt;关注科技产品和个人博客发展,注重用户体验和界面优化&lt;/description&gt;</span><br><span class="line">        &lt;item&gt;</span><br><span class="line">            &lt;title&gt;新购买了一个域名：losehub.com&lt;/title&gt;</span><br><span class="line">            &lt;link&gt;http://blog.limiwu.com/537.html&lt;/link&gt;</span><br><span class="line">            &lt;description&gt;最近新购买了一个域名losehub.com。准备来做一个PHP项目，</span><br><span class="line">            具体的还在谋划中。不知道什么时候能开始制作呢。&lt;/description&gt;</span><br><span class="line">            &lt;pubDate&gt;Tue, 27 Dec 2016 14:47:25 +0800&lt;/pubDate&gt;</span><br><span class="line">        &lt;/item&gt;</span><br><span class="line">        ...</span><br><span class="line">    &lt;/channel&gt;</span><br><span class="line">&lt;/rss&gt;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br></pre></td><td class="code"><pre><span class="line">while ($reader-&gt;read())&#123;  </span><br><span class="line">        if($reader-&gt;nodeType == XMLReader::ELEMENT)&#123;  </span><br><span class="line">            $nodeName = $reader-&gt;name;  </span><br><span class="line">        &#125;  </span><br><span class="line">        //注意XMLReader::TEXT 是识别不了CDATA，如果需要读取CDATA 可以改成$reader-&gt;nodeType == XMLReader::CDATA</span><br><span class="line">        if($reader-&gt;nodeType == XMLReader::TEXT &amp;&amp; !empty($nodeName))&#123;  </span><br><span class="line">            switch($nodeName)&#123;  </span><br><span class="line">                case &apos;title&apos;:</span><br><span class="line">                if ($reader -&gt; depth == &apos;4&apos;)&#123;</span><br><span class="line">                    $title = $reader-&gt;value;</span><br><span class="line">                    &#125;</span><br><span class="line">                    break;   </span><br><span class="line">                case &apos;link&apos;:</span><br><span class="line">                if ($reader -&gt; depth == &apos;4&apos;)&#123;</span><br><span class="line">                    $link = $reader-&gt;value;</span><br><span class="line">                    &#125;</span><br><span class="line">                    break;  </span><br><span class="line">                case &apos;description&apos;:  </span><br><span class="line">                    $description = $reader-&gt;value;  </span><br><span class="line">                    break;  </span><br><span class="line">                case &apos;pubDate&apos;:  </span><br><span class="line">                    $pubDate = $reader-&gt;value;  </span><br><span class="line">                    break;  </span><br><span class="line">            &#125;  </span><br><span class="line">        &#125;  </span><br><span class="line"> &#125;  </span><br><span class="line">$reader-&gt;close();</span><br></pre></td></tr></table></figure>
<h3 id="XMLReader-常量"><a href="#XMLReader-常量" class="headerlink" title="XMLReader 常量"></a>XMLReader 常量</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line">XMLReader::NONE = 0 ;</span><br><span class="line">XMLReader::ELEMENT = 1 ;</span><br><span class="line">XMLReader::ATTRIBUTE = 2 ;</span><br><span class="line">XMLReader::TEXT = 3 ;</span><br><span class="line">XMLReader::CDATA = 4 ;</span><br><span class="line">XMLReader::ENTITY_REF = 5 ;</span><br><span class="line">XMLReader::ENTITY = 6 ;</span><br><span class="line">XMLReader::PI = 7 ;</span><br><span class="line">XMLReader::COMMENT = 8 ;</span><br><span class="line">XMLReader::DOC = 9 ;</span><br><span class="line">XMLReader::DOC_TYPE = 10 ;</span><br><span class="line">XMLReader::DOC_FRAGMENT = 11 ;</span><br><span class="line">XMLReader::NOTATION = 12 ;</span><br><span class="line">XMLReader::WHITESPACE = 13 ;</span><br><span class="line">XMLReader::SIGNIFICANT_WHITESPACE = 14 ;</span><br><span class="line">XMLReader::END_ELEMENT = 15 ;</span><br><span class="line">XMLReader::END_ENTITY = 16 ;</span><br><span class="line">XMLReader::XML_DECLARATION = 17 ;</span><br><span class="line">XMLReader::LOADDTD = 1 ;</span><br><span class="line">XMLReader::DEFAULTATTRS = 2 ;</span><br><span class="line">XMLReader::VALIDATE = 3 ;</span><br><span class="line">XMLReader::SUBST_ENTITIES = 4 ;</span><br></pre></td></tr></table></figure>
<h3 id="XMLReader-方法"><a href="#XMLReader-方法" class="headerlink" title="XMLReader 方法"></a>XMLReader 方法</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br></pre></td><td class="code"><pre><span class="line">a、XMLReader::XML</span><br><span class="line">作用：载入 xml 字符串</span><br><span class="line">用法：XMLReader::xml(string source [, string encoding [, int options]] )</span><br><span class="line">参数：source，xml string；encoding，document encoding or NULL</span><br><span class="line">返回：如果成功则返回 TRUE，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">b、XMLReader::open</span><br><span class="line">作用：载入xml文件</span><br><span class="line">用法：XMLReader::open(string url [, string encoding [, int options]] )</span><br><span class="line">参数：url，连接到xml的链接；encoding，document encoding or NULL</span><br><span class="line">返回：如果成功则返回 TRUE，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">c、XMLReader::read</span><br><span class="line">作用：读取 xml，使解析器前进到下一个标记</span><br><span class="line">用法：XMLReader::read()，在 while 循环中遍历整个文档</span><br><span class="line">参数：NULL</span><br><span class="line">返回：如果成功则返回 TRUE，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">d、XMLReader::getAttribute</span><br><span class="line">作用：获取属性</span><br><span class="line">用法：XMLReader::getAttribute(string name)</span><br><span class="line">参数：name，属性名称</span><br><span class="line">返回：如果成功则返回 属性值，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">e、XMLReader::isValid</span><br><span class="line">作用：检验xml是否合法</span><br><span class="line">用法：XMLReader::isValid()</span><br><span class="line">参数：无</span><br><span class="line">返回：如果成功则返回 true，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">f、XMLReader::moveToAttribute</span><br><span class="line">作用：移动焦点到所指的属性上</span><br><span class="line">用法：XMLReader::moveToAttribute(string name)</span><br><span class="line">参数：name，属性名称</span><br><span class="line">返回：如果成功则返回 true，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">g、XMLReader::moveToFirstAttribute</span><br><span class="line">作用：移动焦点到第一个属性上</span><br><span class="line">用法：XMLReader::moveToFirstAttribute()</span><br><span class="line">参数：无</span><br><span class="line">返回：如果成功则返回 true，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">h、XMLReader::moveToNextAttribute</span><br><span class="line">作用：移动焦点到下一个属性上</span><br><span class="line">用法：XMLReader::moveToNextAttribute()</span><br><span class="line">参数：无</span><br><span class="line">返回：如果成功则返回 true，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">i、XMLReader::moveToElement</span><br><span class="line">作用：移动焦点到父节点当前属性上</span><br><span class="line">用法：XMLReader::moveToElement()</span><br><span class="line">参数：无</span><br><span class="line">返回：如果成功则返回 true，失败则返回 FALSE。</span><br><span class="line"></span><br><span class="line">j、XMLReader::close</span><br><span class="line">作用：关闭xml输入</span><br><span class="line">用法：XMLReader::close()</span><br><span class="line">参数：无</span><br><span class="line">返回：如果成功则返回 true，失败则返回 FALSE。</span><br></pre></td></tr></table></figure>
<h3 id="XMLReader属性"><a href="#XMLReader属性" class="headerlink" title="XMLReader属性"></a>XMLReader属性</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br></pre></td><td class="code"><pre><span class="line">a、XMLReader-&gt;attributeCount ;</span><br><span class="line">作用：属性数量</span><br><span class="line"></span><br><span class="line">b、XMLReader-&gt;baseURI ;</span><br><span class="line">作用：节点的url</span><br><span class="line"></span><br><span class="line">c、XMLReader-&gt;depth ;</span><br><span class="line">作用：节点树的层数</span><br><span class="line"></span><br><span class="line">d、XMLReader-&gt;hasAttributes ;</span><br><span class="line">作用：检测是否有属性</span><br><span class="line"></span><br><span class="line">e、XMLReader-&gt;hasValue ;</span><br><span class="line">作用：是否有值</span><br><span class="line"></span><br><span class="line">f、XMLReader-&gt;isEmptyElement ;</span><br><span class="line">作用：是否是空标签</span><br><span class="line"></span><br><span class="line">g、XMLReader-&gt;localName ;</span><br><span class="line">作用：标签内部明</span><br><span class="line"></span><br><span class="line">h、XMLReader-&gt;name ;</span><br><span class="line">作用：标签名</span><br><span class="line"></span><br><span class="line">i、XMLReader-&gt;nodeType ;</span><br><span class="line">作用：节点类型</span><br><span class="line"></span><br><span class="line">j、XMLReader-&gt;value ;</span><br><span class="line">作用：节点文本内容</span><br></pre></td></tr></table></figure>
<p>————————————————<br>版权声明：本文为CSDN博主「安南子.com」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。<br>原文链接：<a href="https://blog.csdn.net/weixin_45578749/article/details/100131799" target="_blank" rel="noopener">https://blog.csdn.net/weixin_45578749/article/details/100131799</a></p>

      
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                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x"></i></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x"></i></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
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